Toward Smart Pavements: Mechanical and Volumetric Evaluation of Carbon Fiber-Reinforced Asphalt Composite
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Key Points
The research aims to evaluate the enhancement of asphalt pavement performance using carbon fiber reinforcement.
Evaluated NHA Class B asphalt mixtures with 60/70 penetration grade binder
Incorporated carbon fibers through dry mixing at dosages of 0.5%, 1.0%, and 1.5%
Conducted performance tests including indirect tensile strength (ITS), Marshall stability, and resilient modulus
Performed statistical analysis using one-way ANOVA to assess significance of results
1.0% carbon fiber mixture showed optimal performance with a 51.9% increase in ITS
Marshall stability improved by 38.4% and resilient modulus by 42.6%
Rut depth decreased by 69.2% compared to the unmodified control
Dynamic stability reached 33,750 passes/mm, indicating high resistance to deformation
Despite a 6.7% cost increase, the benefit-cost ratio was 4.79, indicating strong economic viability
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Implication
Demonstrates performance enhancement of carbon fiber-reinforced asphalt in pavement applications, suggesting improved durability and cost-effectiveness.